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[Kurt Smolderen <659780@xxxxxxxxxxxxxxxxxx>]

Apart from the 8 instead of 15 steps, not really. But regarding this, I noticed something strange however. It seems like increasing or decreasing the brightness is done by two steps instead of one, that is when you compare it with the initial 15 steps you got. This means that when you start at maximum brightness (15) and you start dimming to zero, you got 15 - 13 - 11 - ... - 3 - 1 - 0. But when you increase the brightness once you reached zero (which is absolutely dimmed), you got 0 - 2 - 4 - ... - 10 - 12 - 14. As 16 is not a valid value, the maximum brightness you got is 14 instead of 15.
So although the 0.25.1 version does support the MacBook pro better compared to 0.25, version 0.24.3 is still more accurate.

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mbp-nvidia-bl-dkms 0.25~lucid broken on MacBookPro6,2
https://bugs.launchpad.net/bugs/659780
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Status in Mactel Support: New

Bug description:
After updating mbp-nvidia-bl-dkms 0.24.3~lucid to 0.25~lucid, backlight control is broken on MacBook Pro 6,2.
- Control keys to adjust brightness do not work anymore
- When unplugging the MacBook Pro from its power supply, the backlight is completely dimmed. Re-plugging the power supply restores the brightness to the value as it was before the laptop was unplugged.
- When the laptop is disconnected from its power supply and is booted, screen brightness is normal but not adjustable.

Running Ubuntu Lucid 64bit with generic kernel 2.6.32-25-generic.44
Using NVIDIA current drivers (195.36.24-0ubuntu1~lucid)
nvidia-bl-dkms is not installed as the backlight is steered by the Intel graphical adapter on the MacBook Pro 6,2